Nut-lock



L. N. WHITE.

- NUT LOOK.

(NoModel.) j

No; 326,015. Patented sein. `8, 1885;`

* UNITED STATES' PATENT OFFICE.

LUTHER NELSON WHIIE, OF COLUMBIA CI'IY, ASSIGNOR OF ONE-HALF TO WILLIAMW. VORTHINGTON AND ROBERT C. BELL, OF FORT WAYNE,

INDIANA.

NUT-LOC K.

SPECIFICATION forming part of Letters Patent No. 326,075, datedSeptember 8I 1885.

Application filed April 30, 1885. (No model.) i i To all whom it mayconcern,.-

Be it known that I, LUTHER N. WHITE,a citizen of the United States, andresident of Columbia City, in the county of Whitley and State ofIndiana, have invented certain new and useful Improvements in Nut-Locks;and I do hereby declare that the following is a full, clear, and exactdescription of theinvention, which will enable others skilled in the artto 1o which it appertains to make anduse the same,

reference being had to the accompanying drawings,- which form a part ofthis specification, and in Which- Figure 1 is a view showing inperspective I5 the several parts of my improved nut-lock separated ordetached from each other. Fig. 2 is a longitudinal vertical sectionalview of the nut-lock complete. Fig. 3 is a transverse sectional view ofthe nut, taken through one 2o of the recesses in the same, with thecorrugated roller in position. Fig. 4 is a view illustrating means forkeeping the rolls in position in the nut previous to the adjustment ofthe latter upon the bolt. Fig. 5 isa sectional view of one of the rolls,illustrating a modiication in the construction of the same; and

Fig. 6 is a perspective view illustrating a modification in theconstruction of the washer.

The same letters refer to the same parts in all 3o the figures.'

This invention relates to nut-locks, and it has for its object toprovide a device of this class which shall possess superioradvantages inpoint of simplicity, durability, and general efficiency.

With these ends in view, the invention consists in the improvedconstruction, arrangement, and combination of parts, which will behereinafter fully described, and particu- 4o larly pointed out in theclaims.

In the drawings hereto annexed, A designates a bolt of ordinaryconstruction, which is to be inserted in the usual manner through theopenings or perforations in the parts which are to be connected, andupon the end of which is placed a washer, B.

C is anut, the inner face of which is provided, on opposite sides ofuthe hole D, with parallel beveled grooves or recesses E E, the

5o bottoms of which are beveled in opposite directions, as shown, and inwhich are seated the cylindrical rolls F, the peripheries of which arecorrugated or provided with ratchet-teeth G, which, when the said rollsare at the lower ends of their respective recesses, shall barely projectbeyond the face H of the nut.

The operation of this invention will be readily understood. When the nutis tightened up against the washer, the serrated rolls will be driven tothe lower ends of their respective recesses, and the teeth of the saidrolls will barely bite in the face of the washer. When the nut has beenthoroughly tightened so as to effect this result, any movement of thenut in a reverse directionwill cause the rolls to travel toward theupper ends of their respective recesses, thereby tightening erkstraining the nut and washer in opposite directions upon the bolt, andabsolutely preventing not only the nut fromworking loose, but itsremoval by any means except by breaking the parts.

When it shall be desired to so arrange the nut that it may be removedwhen occasion demands without breaking the bolt, I avail myself of themodification in the construction of the rolls shown in Fig. 5 of thedrawings. The said rolls are in this case made hollow or tubular, sothat by the application of proper force they may be crushed, thusenabling the nut to be removed.

In order to enable the lnut to be easily manipulated and adjustedwithoutthe rolls dropping out, as they would be liable to do until thenut and washer have been brought sufficiently close together, I proposeto meisten the face of the nut by mucilage or adhesive material ofanykind, and apply thereto a thin sheet of soft paper,` as shown at J inFig. 4, covering the rolls and serving to keep them in their respectiverecesses.` When the nut is tightened up against the washer, this paperwill easily break and leave the serrated edges of the rolls exposed foraction.

When the device is to be applied to woodwork,the inner face ofthe washerB may be provided with ribs K, adapted to enter the wood, and keep itfrom turning upon the bolt. A washer thus constructed has been shown inFig. 6 of the drawings.

IOO

From the foregoing description, taken in connection with the drawingshereto annexed, the operation and advantages of this invention will bereadily understood.

The construction is simple and inexpensive, and the device is easilyadjusted, and effective in operation.

Having thus described my invention, I claim and desire to secure byLetters Patent of the 1c United States- 1. In a nut-lock, thecombination of a bolt, a Washer, a nut provided on opposite sides of itshole With beveled parallel recesses in its inner face, and serrated orratchet-toothed 15 rollers seated in said recesses, the dimensions beingsuch that when the said rolls are at the bottoms of their respectiverecesses their LUTHER NELSON WHITE.

Vitnesses:

JAMES S. COLLINS, WVILLIAM H. PALMER.

